consolidate

pull/10/head
Matthew Butterick 8 years ago
parent 696a73052b
commit cc4b7d358c

@ -1,3 +1,3 @@
#lang br #lang br
(require "line.rkt" "goto.rkt" "end.rkt" "let.rkt" "rem.rkt" "print.rkt" "if.rkt" "expr.rkt" "input.rkt" "gosub.rkt" "for.rkt") (require "line.rkt" "go.rkt" "if.rkt" "expr.rkt" "for.rkt" "misc.rkt")
(provide (all-from-out "line.rkt" "goto.rkt" "end.rkt" "let.rkt" "rem.rkt" "print.rkt" "if.rkt" "expr.rkt" "input.rkt" "gosub.rkt" "for.rkt")) (provide (all-from-out "line.rkt" "go.rkt" "if.rkt" "expr.rkt" "for.rkt" "misc.rkt"))

@ -1,5 +0,0 @@
#lang br
(require "structs.rkt")
(provide b-end)
(define (b-end)
(raise (end-program-signal)))

@ -1,61 +0,0 @@
#lang br/quicklang
(provide (rename-out [b-module-begin #%module-begin])
(matching-identifiers-out #rx"^b-" (all-defined-out)))
(define-macro (b-module-begin (b-program LINE ...))
(with-pattern
([(LINE-NUM ...)
(filter-stx-prop 'b-line-number
(stx-flatten #'(LINE ...)))]
[(LINE-ID ...) (prefix-ids "line-" #'(LINE-NUM ...))])
#'(#%module-begin
LINE ...
(define line-table
(apply hasheqv (append (list LINE-NUM LINE-ID) ...)))
(run line-table))))
(define-macro (b-line LINE-NUMBER STATEMENT ...)
(with-pattern
([LINE-NUMBER-ID (prefix-id "line-" #'LINE-NUMBER
#:source #'LINE-NUMBER)]
[ORIG-LOC caller-stx])
(syntax/loc caller-stx
(define (LINE-NUMBER-ID #:srcloc? [loc #f])
(if loc
(syntax-srcloc #'ORIG-LOC)
(begin (void) STATEMENT ...))))))
(define b-rem void)
(define (b-print [val ""]) (displayln val))
(define (b-sum . nums) (apply + nums))
(define (b-num-expr expr)
(if (integer? expr) (inexact->exact expr) expr))
(struct $program-end-signal ())
(define (b-end) (raise ($program-end-signal)))
(struct $change-line-signal (val))
(define (b-goto expr) (raise ($change-line-signal expr)))
(define-exn line-not-found exn:fail)
(define (run line-table)
(define line-vec
(list->vector (sort (hash-keys line-table) <)))
(with-handlers ([$program-end-signal? void])
(for/fold ([line-idx 0])
([i (in-naturals)])
(unless (< line-idx (vector-length line-vec)) (b-end))
(define line-num (vector-ref line-vec line-idx))
(define line-proc (hash-ref line-table line-num))
(with-handlers
([$change-line-signal?
(λ (cls)
(define clsv ($change-line-signal-val cls))
(or
(and (exact-positive-integer? clsv)
(vector-member clsv line-vec))
(raise-line-not-found
(line-proc #:srcloc? #t))))])
(line-proc)
(add1 line-idx)))))

@ -1,5 +1,5 @@
#lang br #lang br
(require "let.rkt" "line.rkt") (require "misc.rkt" "line.rkt")
(provide b-for b-next) (provide b-for b-next)
(define thunk-table (make-hasheq)) (define thunk-table (make-hasheq))

@ -1,6 +1,9 @@
#lang br #lang br
(require "goto.rkt" "line.rkt") (require "structs.rkt" "line.rkt")
(provide b-gosub b-return) (provide b-goto b-gosub b-return)
(define (b-goto num-expr)
(raise (change-line-signal num-expr)))
(define return-stack empty) (define return-stack empty)

@ -1,5 +0,0 @@
#lang br
(require "structs.rkt")
(provide b-goto)
(define (b-goto num-expr)
(raise (change-line-signal num-expr)))

@ -1,5 +1,5 @@
#lang br #lang br
(require "goto.rkt") (require "go.rkt")
(provide b-if b-comp-expr b-logic-expr) (provide b-if b-comp-expr b-logic-expr)
;; b-if : /"if" b-expr /"then" b-expr [/"else" b-expr] ;; b-if : /"if" b-expr /"then" b-expr [/"else" b-expr]

@ -1,7 +0,0 @@
#lang br
(provide b-input)
(define-macro (b-input ID)
#'(set! ID (let* ([str (read-line)]
[num (string->number (string-trim str))])
(or num str))))

@ -1,3 +0,0 @@
#lang br
(provide b-let)
(define-macro (b-let ID VAL) #'(set! ID VAL))

@ -1,58 +0,0 @@
#lang br
(require "lexer.rkt" brag/support rackunit)
(define (lex str)
(apply-lexer basic-lexer str))
(check-equal? (lex "") empty)
(check-equal?
(lex " ")
(list (srcloc-token (token " " #:skip? #t)
(srcloc 'string #f #f 1 1))))
(check-equal?
(lex "rem ignored\n")
(list (srcloc-token (token 'REM "rem ignored")
(srcloc 'string #f #f 1 11))
(srcloc-token (token 'NEWLINE "\n")
(srcloc 'string #f #f 12 1))))
(check-equal?
(lex "print")
(list (srcloc-token "print"
(srcloc 'string #f #f 1 5))))
(check-equal?
(lex "goto")
(list (srcloc-token "goto"
(srcloc 'string #f #f 1 4))))
(check-equal?
(lex "end")
(list (srcloc-token "end"
(srcloc 'string #f #f 1 3))))
(check-equal?
(lex "+")
(list (srcloc-token "+"
(srcloc 'string #f #f 1 1))))
(check-equal?
(lex "12")
(list (srcloc-token (token 'INTEGER 12)
(srcloc 'string #f #f 1 2))))
(check-equal?
(lex "1.2")
(list (srcloc-token (token 'DECIMAL 1.2)
(srcloc 'string #f #f 1 3))))
(check-equal?
(lex "12.")
(list (srcloc-token (token 'DECIMAL 12.)
(srcloc 'string #f #f 1 3))))
(check-equal?
(lex ".12")
(list (srcloc-token (token 'DECIMAL .12)
(srcloc 'string #f #f 1 3))))
(check-equal?
(lex "\"foo\"")
(list (srcloc-token (token 'STRING "foo")
(srcloc 'string #f #f 1 5))))
(check-equal?
(lex "'foo'")
(list (srcloc-token (token 'STRING "foo")
(srcloc 'string #f #f 1 5))))
(check-exn exn:fail:read? (lambda () (lex "x")))

@ -0,0 +1,17 @@
#lang br
(require "structs.rkt")
(provide (all-defined-out))
(define (b-rem val) (void))
(define (b-print . vals)
(displayln (string-append* (map ~a vals))))
(define-macro (b-let ID VAL) #'(set! ID VAL))
(define-macro (b-input ID)
#'(set! ID (let* ([str (read-line)]
[num (string->number (string-trim str))])
(or num str))))
(define (b-end) (raise (end-program-signal)))

@ -1,14 +0,0 @@
#lang br/quicklang
(require "parser.rkt" "tokenizer.rkt")
(define (read-syntax path port)
(define parse-tree (parse path (make-tokenizer port path)))
(strip-bindings
#`(module basic-parser-mod basic-demo/parse-only
#,parse-tree)))
(module+ reader (provide read-syntax))
(define-macro (parser-only-mb PARSE-TREE)
#'(#%module-begin
'PARSE-TREE))
(provide (rename-out [parser-only-mb #%module-begin]))

@ -1,15 +0,0 @@
#lang br/quicklang
(require "parser.rkt" "tokenizer.rkt")
(define (read-syntax path port)
(define parse-tree (parse path (make-tokenizer port path)))
(strip-bindings
#`(module basic-parser-mod basic-demo/parse-stx
#'#,parse-tree)))
(module+ reader (provide read-syntax))
(define-macro (parser-only-mb PARSE-STX)
#'(#%module-begin
PARSE-STX))
(provide (rename-out [parser-only-mb #%module-begin]))
(provide syntax)

@ -1,4 +0,0 @@
#lang br
(provide b-print)
(define (b-print . vals)
(displayln (string-append* (map ~a vals))))

@ -1,3 +0,0 @@
#lang br
(provide b-rem)
(define (b-rem val) (void))

@ -1,11 +0,0 @@
#lang br
(require "tokenizer.rkt" "parser.rkt" brag/support)
(define str #<<here
10 rem print
20 end
here
)
(parse-to-datum (apply-tokenizer-maker make-tokenizer str))

@ -1,14 +0,0 @@
#lang br/quicklang
(require brag/support "tokenizer.rkt")
(define (read-syntax path port)
(define tokens (apply-tokenizer make-tokenizer port))
(strip-bindings
#`(module basic-tokens-mod basic-demo/tokenize-only
#,@tokens)))
(module+ reader (provide read-syntax))
(define-macro (parser-only-mb TOKEN ...)
#'(#%module-begin
(list TOKEN ...)))
(provide (rename-out [parser-only-mb #%module-begin]))
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